A police officer is driving around when he sees a man walking down the street with a penguin. So the officer pulls up next to the man and tells him: "You need to take that penguin to the zoo!" The man agrees, and the officer continues on his way.

The next day, he sees the same man walking down the street with the penguin. So once again, the officer pulls up next to him.

"I thought I told you to take that penguin to the zoo!" he says.

"Oh, I did," replies the man, "and we had so much fun, I'm taking him to the movies today!"

-----------------------------------------------------And for any chemistry geeks:

Q: Why did the white bear dissolve in water?A: Because it was polar

Q: Why does steak have more energy than hamburger?A: Because hamburger is in its ground state